When you install Python packages with pip, it looks up the corresponding package on the https://pypi.python.org/simple/ index by default, then downloads and installs it. But in an intranet environment, or when you need to publish some private packages to designated users, you have to build your own PyPI Server. This post mainly records the process of building a PyPI Server index with the devpi tool, along with some commonly used commands.

This post mainly explains why the service discovery feature is needed and compares several service discovery tools. It also puts service discovery with Etcd, Confd, and Nginx into practice on CentOS. 1. Service Registration and Discovery 1.1 Why Service Registration and Discovery Are Needed With the rise of microservices, a

This article gives a brief introduction to the ELK stack and provides a Docker compose orchestration configuration. After reading it, you can get ELK running locally with Docker. A later article will cover deploying ELK on servers and adding the related configuration. 1. Introduction to the ELK Stack ELK is not actually a single piece of software but a whole solution — an acronym formed from the initials of three software products: Elasticsearch, Logstash, and Kibana.

1. Documentation Pandoc Pandoc is a text conversion tool written in Haskell. It is fast and supports a wide range of formats, converting Markdown, LaTeX, and others into HTML, Docs, PDF, and more. All it takes is a simple command: 1 pandoc mypaper.md -o mypaper.docx Graphviz An open-source toolkit developed

1. Introduction Jupyter Notebook (formerly IPython notebook) is an interactive notebook that supports running more than 40 programming languages. Jupyter Notebook is in fact a web application that lets you create and share program documents, with support for live code, mathematical equations, visualizations, and Markdown. Its uses include data cleaning